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Transmission slow to engage starts to Move then stops

Tiny
LAWRENCE CHENOWETH
  • MEMBER
  • 2002 MERCURY MOUNTAINEER
  • 4.0L
  • V6
  • 4WD
  • AUTOMATIC
  • 175,000 MILES
Just changed the valve body and the shift solenoid pack plus put 6 quarts of transmission fluid.
Saturday, September 28th, 2019 AT 2:08 PM

17 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

Did you have this issue prior to the valve body replacement?

https://www.2carpros.com/articles/automatic-transmission-problems

Are there any codes stored?

Roy
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Saturday, September 28th, 2019 AT 2:32 PM
Tiny
LAWRENCE CHENOWETH
  • MEMBER
  • 39 POSTS
No codes and the transmission was starting to slip.
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Saturday, September 28th, 2019 AT 2:34 PM
Tiny
ASEMASTER6371
  • MECHANIC
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Okay. That is not the valve body at all. Slipping is internal with the clutches and seals. That is a mechanical issue and there are no codes for mechanical issues.

Sounds like you need to rebuild or replace the transmission.

Roy
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Saturday, September 28th, 2019 AT 2:57 PM
Tiny
LAWRENCE CHENOWETH
  • MEMBER
  • 39 POSTS
What is the thing called that has four bolts before you take off the valve body it has a round big spring in it does it push on a clutch?
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Saturday, September 28th, 2019 AT 2:59 PM
Tiny
ASEMASTER6371
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Can you post a picture?

It sounds like an accumulator spring. That is a spring that applies a band for smooth operation.

Roy
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Saturday, September 28th, 2019 AT 3:02 PM
Tiny
LAWRENCE CHENOWETH
  • MEMBER
  • 39 POSTS
I wasn't having this problem before it was slipping but not this bad. Plus it engaged into gear and moved now it en-gauges but when go to move it slips out of gear.
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Saturday, September 28th, 2019 AT 3:04 PM
Tiny
ASEMASTER6371
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Okay, then something happened during your repair replacing the valve body.

You need to go over your work.

Did you replace the gaskets when you changed the valve body?

Roy
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Saturday, September 28th, 2019 AT 3:13 PM
Tiny
LAWRENCE CHENOWETH
  • MEMBER
  • 39 POSTS
Yes, the new valve body came with the new gasket on it and the shift solenoid is new as well. I bought them as a pair.
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Saturday, September 28th, 2019 AT 3:22 PM
Tiny
ASEMASTER6371
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Okay, something is not correct as it is not the same as it was prior to the repair.

Was the valve body identical?

Roy
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Saturday, September 28th, 2019 AT 3:33 PM
Tiny
LAWRENCE CHENOWETH
  • MEMBER
  • 39 POSTS
They looked the same to me. The plug only plugs in one way doesn't it?
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Saturday, September 28th, 2019 AT 3:43 PM
Tiny
ASEMASTER6371
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Okay, something is incorrect. You need to start from scratch and pull it down again.

Roy
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Saturday, September 28th, 2019 AT 3:48 PM
Tiny
LAWRENCE CHENOWETH
  • MEMBER
  • 39 POSTS
Okay, I don't know what it could be other than the spring thing that band didn't look right. The band under it moves around not sure.
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Saturday, September 28th, 2019 AT 3:51 PM
Tiny
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Was the spring broken?

Roy
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Saturday, September 28th, 2019 AT 3:56 PM
Tiny
LAWRENCE CHENOWETH
  • MEMBER
  • 39 POSTS
No, that is why I don't understand what went wrong the transmission fluid looked brown but no metal shavings on the magnetic. There was a bunch of sludge though.
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Saturday, September 28th, 2019 AT 4:01 PM
Tiny
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Not a good sign at all. It sounds like you are going to either rebuild it or replace it.

Roy
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Saturday, September 28th, 2019 AT 4:03 PM
Tiny
LAWRENCE CHENOWETH
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Okay, thank you for the input.
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Saturday, September 28th, 2019 AT 4:04 PM
Tiny
ASEMASTER6371
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You are welcome.

Always glad to help.

Roy
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Saturday, September 28th, 2019 AT 4:08 PM

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